Disney's Film Business Gets Big Boost From 'Frozen'

Operating Income at Film Unit More Than Quadruples; Musical in the Works

Walt Disney Co.'s film business was on fire last quarter thanks to "Frozen."

Operating income at Walt Disney Studios more than quadrupled in the quarter ended March 29 to $475 million and revenue increased 35% to $1.8 billion as the media giant experienced another season of growth across all its businesses.

The huge increase in operating income at the film unit was primarily due to March's home video release of...